Field and temperature dependence of the current-voltage characteristics of Bi2Sr2Ca2Cu3O10/Ag multifilamentary tapes |
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| Authors: | A Crisan L Miu S Popa C Beduz |
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| Affiliation: | (1) Institute of Cryogenics, University of Southampton, SO17 1BJ Southampton, UK;(2) Institute of Physics and Technology of Materials, P.O. Box MG-7, Bucharest, Romania |
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| Abstract: | The current-voltage characteristics of Bi2Sr2Ca2Cu3O10/Ag multifilamentary tapes were measured at different temperatures close to the critical temperature and in different applied
magnetic fields up to 1000 Oe. The data were interpreted in terms of thermally activated flux creep by using an intermediate
phenomenological model that takes into account the collective pinning. Temperature and field dependences of the pinning potential
and of the collective pinning exponent were determined through numerical analysis. |
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| Keywords: | Multifilamentary tapes I-V curves flux creep collective pinning |
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